Examples with GL_SRC_ALPHA org.lwjgl.opengl.GL30.GL_SRC_ALPHA used on opensource projects

Example 1 with GL_SRC_ALPHA

use of org.lwjgl.opengl.GL30.GL_SRC_ALPHA in project Wizardry by TeamWizardry.

the class FairyData method render.

@SideOnly(Side.CLIENT)
public void render(World world, Vec3d pos, Vec3d prevPos, float partialTicks) {
    if (!wasTamperedWith && !isDepressed) {
        LibParticles.FAIRY_HEAD(world, pos.add(0, 0.25, 0), primaryColor);
        ParticleBuilder glitter = new ParticleBuilder(age / 2);
        glitter.setRender(new ResourceLocation(Wizardry.MODID, NBTConstants.MISC.SPARKLE_BLURRED));
        glitter.setAlphaFunction(new InterpFloatInOut(0.2f, 1f));
        if (RandUtil.nextInt(3) == 0)
            ParticleSpawner.spawn(glitter, world, new StaticInterp<>(pos), 1, 0, (i, build) -> {
                build.setMotion(new Vec3d(RandUtil.nextDouble(-0.01, 0.01), RandUtil.nextDouble(-0.01, 0.01), RandUtil.nextDouble(-0.01, 0.01)));
                if (RandUtil.nextBoolean())
                    build.setColor(primaryColor);
                else
                    build.setColor(secondaryColor);
                if (isDepressed) {
                    build.setCollision(true);
                    build.enableMotionCalculation();
                    build.setAcceleration(new Vec3d(0, -0.005, 0));
                }
            });
    } else {
        {
            GlStateManager.pushMatrix();
            EntityPlayer player = Minecraft.getMinecraft().player;
            if (player == null)
                return;
            double interpPosX = player.lastTickPosX + (player.posX - player.lastTickPosX) * partialTicks;
            double interpPosY = player.lastTickPosY + (player.posY - player.lastTickPosY) * partialTicks;
            double interpPosZ = player.lastTickPosZ + (player.posZ - player.lastTickPosZ) * partialTicks;
            GlStateManager.translate(-interpPosX, -interpPosY, -interpPosZ);
            GlStateManager.translate(pos.x, pos.y, pos.z);
            Minecraft.getMinecraft().entityRenderer.disableLightmap();
            GlStateManager.enableDepth();
            GlStateManager.disableCull();
            GlStateManager.enableAlpha();
            GlStateManager.enableBlend();
            GlStateManager.blendFunc(GL_SRC_ALPHA, GL_ONE);
            GlStateManager.tryBlendFuncSeparate(GlStateManager.SourceFactor.SRC_ALPHA, GlStateManager.DestFactor.ONE_MINUS_SRC_ALPHA, GlStateManager.SourceFactor.ONE, GlStateManager.DestFactor.ZERO);
            GlStateManager.color(1, 1, 1, 1);
            GlStateManager.disableTexture2D();
            GlStateManager.enableColorMaterial();
            GlStateManager.disableLighting();
            GlStateManager.shadeModel(GL11.GL_SMOOTH);
            int alphaFunc = GL11.glGetInteger(GL11.GL_ALPHA_TEST_FUNC);
            float alphaTest = GL11.glGetFloat(GL11.GL_ALPHA_TEST_REF);
            GlStateManager.alphaFunc(GL11.GL_ALWAYS, 1);
            GlStateManager.pushMatrix();
            GlStateManager.rotate(-Minecraft.getMinecraft().getRenderManager().playerViewY, 0.0F, 1.0F, 0.0F);
            GlStateManager.rotate((float) (Minecraft.getMinecraft().getRenderManager().options.thirdPersonView == 2 ? -1 : 1) * Minecraft.getMinecraft().getRenderManager().playerViewX, 1.0F, 0.0F, 0.0F);
            Tessellator tessellator = Tessellator.getInstance();
            BufferBuilder bb = tessellator.getBuffer();
            double radius = 0.1;
            Color color = primaryColor;
            bb.begin(GL11.GL_TRIANGLE_FAN, DefaultVertexFormats.POSITION_COLOR);
            for (int i = 0; i <= 50; i++) {
                double x = radius * MathHelper.cos((float) ((i / 50.0) * Math.PI * 2));
                double z = radius * MathHelper.sin((float) ((i / 50.0) * Math.PI * 2));
                bb.pos(x, z, 0).color(color.getRed(), color.getGreen(), color.getBlue(), 255).endVertex();
            }
            tessellator.draw();
            GlStateManager.popMatrix();
            bb.begin(GL11.GL_TRIANGLES, DefaultVertexFormats.POSITION_COLOR);
            Vec3d sub = pos.subtract(prevPos).scale(-1).add(0, 0.2, 0).scale(3);
            Vec3d posCross = sub.crossProduct(new Vec3d(0, 1, 0)).normalize();
            Vec3d posPerp = posCross.crossProduct(sub).normalize().scale(radius - 0.2);
            Vec3d vec1 = posPerp;
            Vec3d vec2 = posPerp.scale(-1);
            bb.pos(sub.x, sub.y, sub.z).color(color.getRed(), color.getGreen(), color.getBlue(), 255).endVertex();
            bb.pos(vec1.x, vec1.y, vec1.z).color(color.getRed(), color.getGreen(), color.getBlue(), 255).endVertex();
            bb.pos(vec2.x, vec2.y, vec2.z).color(color.getRed(), color.getGreen(), color.getBlue(), 255).endVertex();
            Vec3d vec3 = posCross.scale(radius);
            Vec3d vec4 = posCross.scale(-1).scale(radius);
            bb.pos(sub.x, sub.y, sub.z).color(color.getRed(), color.getGreen(), color.getBlue(), 255).endVertex();
            bb.pos(vec3.x, vec3.y, vec3.z).color(color.getRed(), color.getGreen(), color.getBlue(), 255).endVertex();
            bb.pos(vec4.x, vec4.y, vec4.z).color(color.getRed(), color.getGreen(), color.getBlue(), 255).endVertex();
            tessellator.draw();
            GlStateManager.pushMatrix();
            GlStateManager.rotate(-Minecraft.getMinecraft().getRenderManager().playerViewY, 0.0F, 1.0F, 0.0F);
            GlStateManager.rotate((float) (Minecraft.getMinecraft().getRenderManager().options.thirdPersonView == 2 ? -1 : 1) * Minecraft.getMinecraft().getRenderManager().playerViewX, 1.0F, 0.0F, 0.0F);
            int sections = 50;
            float epsilon = 2 * (float) Math.PI / sections;
            double innerRadius = radius;
            double outerRadius = radius + 0.01;
            Color inner = primaryColor;
            Color outer = new Color(primaryColor.getRed(), primaryColor.getGreen(), primaryColor.getBlue(), 0);
            bb.begin(GL11.GL_TRIANGLE_STRIP, DefaultVertexFormats.POSITION_COLOR);
            for (int i = 0; i <= sections; i++) {
                float angle = i * epsilon;
                float nextAngle = (i + 1) * epsilon;
                float x1 = (float) (MathHelper.cos(angle) * innerRadius);
                float y1 = (float) (MathHelper.sin(angle) * innerRadius);
                float x2 = (float) (MathHelper.cos(nextAngle) * outerRadius);
                float y2 = (float) (MathHelper.sin(nextAngle) * outerRadius);
                bb.pos(x1, y1, 0).color(inner.getRed(), inner.getGreen(), inner.getBlue(), inner.getAlpha()).endVertex();
                bb.pos(x2, y2, 0).color(outer.getRed(), outer.getGreen(), outer.getBlue(), outer.getAlpha()).endVertex();
            }
            tessellator.draw();
            radius = 0.2;
            color = secondaryColor;
            GlStateManager.translate(0, 0, 0.01);
            bb.begin(GL11.GL_TRIANGLE_FAN, DefaultVertexFormats.POSITION_COLOR);
            bb.pos(0, 0, 0).color(color.getRed(), color.getGreen(), color.getBlue(), 100).endVertex();
            for (int i = 0; i <= 50; i++) {
                double x = radius * MathHelper.cos((float) ((i / 50.0) * Math.PI * 2));
                double z = radius * MathHelper.sin((float) ((i / 50.0) * Math.PI * 2));
                bb.pos(x, z, 0).color(color.getRed(), color.getGreen(), color.getBlue(), 0).endVertex();
            }
            tessellator.draw();
            GlStateManager.translate(0, 0, -0.01);
            GlStateManager.alphaFunc(alphaFunc, alphaTest);
            GlStateManager.disableBlend();
            GlStateManager.enableAlpha();
            GlStateManager.enableTexture2D();
            GlStateManager.disableColorMaterial();
            Minecraft.getMinecraft().entityRenderer.enableLightmap();
            GlStateManager.enableDepth();
            GlStateManager.popMatrix();
            GlStateManager.popMatrix();
        }
    }
}