Simplify custom item rendering by removing GL emissivity hacks
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d02da21a7a
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1 changed files with 21 additions and 67 deletions
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@ -625,22 +625,16 @@ public class ForgeHooksClient
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List<BakedQuad> segment = new ArrayList<>();
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// Lighting of the current segment
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int segmentBlockLight = -1;
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int segmentSkyLight = -1;
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// Coloring of the current segment
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int segmentColorMultiplier = color;
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int segmentBlockLight = 0;
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int segmentSkyLight = 0;
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// Diffuse lighting state
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boolean segmentShading = true;
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// State changed by the current segment
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boolean segmentLightingDirty = false;
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boolean segmentColorDirty = false;
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boolean segmentShadingDirty = false;
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// If the current segment contains lighting data
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boolean hasLighting = false;
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// Tint index cache to avoid unnecessary IItemColor lookups
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int prevTintIndex = -1;
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for (int i = 0; i < allquads.size(); i++)
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{
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BakedQuad q = allquads.get(i);
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@ -660,62 +654,40 @@ public class ForgeHooksClient
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}
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}
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int colorMultiplier = segmentColorMultiplier;
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// If there is no color override, and this quad is tinted, we need to apply IItemColor
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if (color == 0xFFFFFFFF && q.hasTintIndex())
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{
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int tintIndex = q.getTintIndex();
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if (prevTintIndex != tintIndex)
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{
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colorMultiplier = getColorMultiplier(stack, tintIndex);
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}
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prevTintIndex = tintIndex;
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}
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else
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{
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colorMultiplier = color;
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prevTintIndex = -1;
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}
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boolean shade = q.shouldApplyDiffuseLighting();
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boolean lightingDirty = segmentBlockLight != bl || segmentSkyLight != sl;
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boolean colorDirty = hasLighting && segmentColorMultiplier != colorMultiplier;
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boolean shadeDirty = shade != segmentShading;
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// If lighting or color data has changed, draw the segment and flush it
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if (lightingDirty || colorDirty || shadeDirty)
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if (lightingDirty || shadeDirty)
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{
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if (i > 0) // Make sure this isn't the first quad being processed
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{
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drawSegment(ri, color, stack, segment, segmentBlockLight, segmentSkyLight, segmentColorMultiplier, segmentShading, segmentLightingDirty && (hasLighting || segment.size() < i), segmentColorDirty, segmentShadingDirty);
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drawSegment(ri, color, stack, segment, segmentBlockLight, segmentSkyLight, segmentShading, segmentLightingDirty && (hasLighting || segment.size() < i), segmentShadingDirty);
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}
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segmentBlockLight = bl;
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segmentSkyLight = sl;
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segmentColorMultiplier = colorMultiplier;
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segmentShading = shade;
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segmentLightingDirty = lightingDirty;
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segmentColorDirty = colorDirty;
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segmentShadingDirty = shadeDirty;
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hasLighting = segmentBlockLight > 0 || segmentSkyLight > 0;
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hasLighting = segmentBlockLight > 0 || segmentSkyLight > 0 || !segmentShading;
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}
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segment.add(q);
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}
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drawSegment(ri, color, stack, segment, segmentBlockLight, segmentSkyLight, segmentColorMultiplier, segmentShading, segmentLightingDirty && (hasLighting || segment.size() < allquads.size()), segmentColorDirty, segmentShadingDirty);
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drawSegment(ri, color, stack, segment, segmentBlockLight, segmentSkyLight, segmentShading, segmentLightingDirty && (hasLighting || segment.size() < allquads.size()), segmentShadingDirty);
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// Clean up render state if necessary
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if (hasLighting)
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{
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OpenGlHelper.glMultiTexCoord2f(OpenGlHelper.GL_TEXTURE1, OpenGlHelper.lastBrightnessX, OpenGlHelper.lastBrightnessY);
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GL11.glMaterialfv(GL11.GL_FRONT_AND_BACK, GL11.GL_EMISSION, RenderHelper.setColorBuffer(0, 0, 0, 1));
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OpenGlHelper.glMultiTexCoord2f(OpenGlHelper.GL_TEXTURE0, OpenGlHelper.lastBrightnessX, OpenGlHelper.lastBrightnessY);
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GlStateManager.enableLighting();
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}
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}
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private static void drawSegment(ItemRenderer ri, int baseColor, ItemStack stack, List<BakedQuad> segment, int bl, int sl, int tintColor, boolean shade, boolean updateLighting, boolean updateColor, boolean updateShading)
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private static void drawSegment(ItemRenderer ri, int baseColor, ItemStack stack, List<BakedQuad> segment, int bl, int sl, boolean shade, boolean updateLighting, boolean updateShading)
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{
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BufferBuilder bufferbuilder = Tessellator.getInstance().getBuffer();
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bufferbuilder.begin(GL11.GL_QUADS, DefaultVertexFormats.ITEM);
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@ -723,31 +695,25 @@ public class ForgeHooksClient
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float lastBl = OpenGlHelper.lastBrightnessX;
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float lastSl = OpenGlHelper.lastBrightnessY;
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if (updateLighting || updateColor || updateShading)
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if (updateShading)
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{
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if (!shade)
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if (shade)
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{
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// When diffuse lighting is off, set the emissive buffer to "disable" the GL lighting effects and emulate the block rendering
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float emissive = Math.max(bl, sl) / 240f;
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float r = (tintColor >>> 16 & 0xff) / 255f;
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float g = (tintColor >>> 8 & 0xff) / 255f;
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float b = (tintColor & 0xff) / 255f;
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GL11.glMaterialfv(GL11.GL_FRONT_AND_BACK, GL11.GL_EMISSION, RenderHelper.setColorBuffer(emissive * r, emissive * g, emissive * b, 1));
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// (Re-)enable lighting for normal look with shading
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GlStateManager.enableLighting();
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}
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else
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{
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// Otherwise leave it as-is (or reset it) so that normal lighting effects take hold
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// Color will be set instead by downstream RenderItem#renderQuads
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GL11.glMaterialfv(GL11.GL_FRONT_AND_BACK, GL11.GL_EMISSION, RenderHelper.setColorBuffer(0, 0, 0, 1));
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}
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if (updateLighting)
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{
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OpenGlHelper.glMultiTexCoord2f(OpenGlHelper.GL_TEXTURE1, Math.max(bl, lastBl), Math.max(sl, lastSl));
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// Disable lighting to simulate a lack of diffuse lighting
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GlStateManager.disableLighting();
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}
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}
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if (updateLighting)
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{
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// Force lightmap coords to simulate synthetic lighting
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OpenGlHelper.glMultiTexCoord2f(OpenGlHelper.GL_TEXTURE0, Math.max(bl, lastBl), Math.max(sl, lastSl));
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}
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ri.renderQuads(bufferbuilder, segment, baseColor, stack);
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Tessellator.getInstance().draw();
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@ -759,18 +725,6 @@ public class ForgeHooksClient
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segment.clear();
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}
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private static int getColorMultiplier(ItemStack stack, int tintIndex)
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{
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if (tintIndex == -1 || stack.isEmpty()) return 0xFFFFFFFF;
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int colorMultiplier = Minecraft.getInstance().getItemColors().getColor(stack, tintIndex);
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// Always full opacity
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colorMultiplier |= 0xff << 24; // -16777216
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return colorMultiplier;
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}
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/**
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* internal, relies on fixed format of FaceBakery
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*/
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