1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
package com.anthonyhilyard.iceberg.renderer;
import com.mojang.blaze3d.matrix.MatrixStack;
import com.mojang.blaze3d.platform.GlStateManager.DestFactor;
import com.mojang.blaze3d.platform.GlStateManager.SourceFactor;
import com.mojang.blaze3d.systems.RenderSystem;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.lwjgl.opengl.GL11;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.AbstractGui;
import net.minecraft.client.renderer.IRenderTypeBuffer;
import net.minecraft.client.renderer.ItemRenderer;
import net.minecraft.client.renderer.RenderHelper;
import net.minecraft.client.renderer.color.ItemColors;
import net.minecraft.client.renderer.model.IBakedModel;
import net.minecraft.client.renderer.model.ItemCameraTransforms;
import net.minecraft.client.renderer.model.ModelManager;
import net.minecraft.client.renderer.texture.AtlasTexture;
import net.minecraft.client.renderer.texture.OverlayTexture;
import net.minecraft.client.renderer.texture.TextureManager;
import net.minecraft.client.shader.Framebuffer;
import net.minecraft.item.ItemStack;
/**
* An extended ItemRenderer that allows items to be rendered to framebuffer before drawing to screen.
* This allows alpha values to be supported properly by all item types, even semi-transparent items.
*/
public class CustomItemRenderer extends ItemRenderer
{
@SuppressWarnings("unused")
private static final Logger LOGGER = LogManager.getLogger();
private static Framebuffer iconFrameBuffer = null;
private Minecraft mc;
public CustomItemRenderer(TextureManager textureManagerIn, ModelManager modelManagerIn, ItemColors itemColorsIn, Minecraft mcIn)
{
super(textureManagerIn, modelManagerIn, itemColorsIn);
mc = mcIn;
// Initialize the icon framebuffer if needed.
if (iconFrameBuffer == null)
{
// Use 96 x 96 pixels for the icon frame buffer so at 1.5 scale we get 4x resolution (for smooth icons on larger gui scales).
iconFrameBuffer = new Framebuffer(96, 96, true, Minecraft.ON_OSX);
iconFrameBuffer.setClearColor(0.0F, 0.0F, 0.0F, 0.0F);
}
}
@SuppressWarnings("deprecation")
public void renderItemModelIntoGUIWithAlpha(ItemStack stack, int x, int y, float alpha)
{
IBakedModel bakedModel = mc.getItemRenderer().getModel(stack, null, null);
Framebuffer lastFrameBuffer = mc.getMainRenderTarget();
// Bind the icon framebuffer so we can render to texture.
iconFrameBuffer.clear(Minecraft.ON_OSX);
iconFrameBuffer.bindWrite(true);
RenderSystem.clear(GL11.GL_DEPTH_BUFFER_BIT, Minecraft.ON_OSX);
RenderSystem.matrixMode(GL11.GL_PROJECTION);
RenderSystem.pushMatrix();
RenderSystem.loadIdentity();
RenderSystem.ortho(0.0D, iconFrameBuffer.width, iconFrameBuffer.height, 0.0D, 1000.0D, 3000.0D);
RenderSystem.matrixMode(GL11.GL_MODELVIEW);
RenderSystem.pushMatrix();
RenderSystem.loadIdentity();
RenderSystem.translatef(0.0F, 0.0F, -2000.0F);
RenderHelper.setupFor3DItems();
mc.getTextureManager().bind(AtlasTexture.LOCATION_BLOCKS);
mc.getTextureManager().getTexture(AtlasTexture.LOCATION_BLOCKS).setFilter(false, false);
RenderSystem.enableRescaleNormal();
RenderSystem.enableAlphaTest();
RenderSystem.defaultAlphaFunc();
RenderSystem.enableBlend();
RenderSystem.blendFuncSeparate(SourceFactor.SRC_ALPHA, DestFactor.ONE_MINUS_SRC_ALPHA, SourceFactor.ONE, DestFactor.ONE_MINUS_SRC_ALPHA);
RenderSystem.color4f(1.0f, 1.0f, 1.0f, 1.0f);
RenderSystem.translatef(48.0f, 48.0f, 150.0f + this.blitOffset);
RenderSystem.scalef(1.0f, -1.0f, 1.0f);
RenderSystem.scalef(96.0f, 96.0f, 96.0f);
MatrixStack matrixStack = new MatrixStack();
IRenderTypeBuffer.Impl renderBuffer = Minecraft.getInstance().renderBuffers().bufferSource();
boolean isSideLit = !bakedModel.usesBlockLight();
if (isSideLit)
{
RenderHelper.setupForFlatItems();
}
render(stack, ItemCameraTransforms.TransformType.GUI, false, matrixStack, renderBuffer, 0xF000F0, OverlayTexture.NO_OVERLAY, bakedModel);
renderBuffer.endBatch();
RenderSystem.enableDepthTest();
if (isSideLit)
{
RenderHelper.setupFor3DItems();
}
RenderSystem.disableRescaleNormal();
RenderSystem.popMatrix();
RenderSystem.matrixMode(GL11.GL_PROJECTION);
RenderSystem.popMatrix();
RenderSystem.matrixMode(GL11.GL_MODELVIEW);
// Rebind the previous framebuffer, if there was one.
if (lastFrameBuffer != null)
{
lastFrameBuffer.bindWrite(true);
// Blit from the texture we just rendered to, respecting the alpha value given.
iconFrameBuffer.bindRead();
RenderSystem.enableAlphaTest();
RenderSystem.enableBlend();
RenderSystem.defaultBlendFunc();
RenderSystem.defaultAlphaFunc();
RenderSystem.disableCull();
RenderSystem.color4f(1.0f, 1.0f, 1.0f, alpha);
RenderSystem.scalef(1.0f, -1.0f, 1.0f);
AbstractGui.blit(new MatrixStack(), x, y - 18, 16, 16, 0, 0, iconFrameBuffer.width, iconFrameBuffer.height, iconFrameBuffer.width, iconFrameBuffer.height);
}
else
{
iconFrameBuffer.unbindWrite();
}
}
}
|
