mirror of
https://github.com/Merlin1809/Eclipse-Shader.git
synced 2026-10-11 17:58:20 +08:00
90 lines
2.6 KiB
GLSL
90 lines
2.6 KiB
GLSL
ivec3 GetVoxelIndex(const in vec3 playerPos) {
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#if !defined IS_LPV_ENABLED && !defined SHADER_GRASS
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vec3 cameraOffset = fract(cameraPosition-relativeEyePosition);
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#else
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vec3 cameraOffset = fract(cameraPosition);
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#endif
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return ivec3(floor(playerPos + cameraOffset) + VoxelSize3/2u);
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}
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void SetVoxelBlock(const in ivec3 voxelPos, const in uint blockId) {
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if (clamp(voxelPos, ivec3(0), ivec3(VoxelSize-1u)) != voxelPos) return;
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imageStore(imgVoxelMask, voxelPos, uvec4(blockId));
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}
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void PopulateShadowVoxel(const in vec3 playerPos) {
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uint voxelId = 0u;
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vec3 originPos = playerPos;
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if (
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renderStage == MC_RENDER_STAGE_TERRAIN_SOLID || renderStage == MC_RENDER_STAGE_TERRAIN_TRANSLUCENT ||
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renderStage == MC_RENDER_STAGE_TERRAIN_CUTOUT || renderStage == MC_RENDER_STAGE_TERRAIN_CUTOUT_MIPPED
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) {
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voxelId = uint(mc_Entity.x + 0.5);
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#ifdef IRIS_FEATURE_BLOCK_EMISSION_ATTRIBUTE
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if (voxelId == 0u && at_midBlock.w > 0) voxelId = uint(BLOCK_LIGHT_1 + at_midBlock.w - 1);
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#endif
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if (voxelId == 0u) voxelId = 1u;
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originPos += at_midBlock.xyz/64.0;
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}
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#if !defined IS_LPV_ENABLED && !defined SHADER_GRASS
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ivec3 voxelPos = GetVoxelIndex(originPos+relativeEyePosition);
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#else
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ivec3 voxelPos = GetVoxelIndex(originPos);
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#endif
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#ifdef LPV_ENTITY_LIGHTS
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if (
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((renderStage == MC_RENDER_STAGE_ENTITIES && (currentRenderedItemId > 0 || entityId > 0)) || renderStage == MC_RENDER_STAGE_BLOCK_ENTITIES)
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) {
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if (renderStage == MC_RENDER_STAGE_BLOCK_ENTITIES) {
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if (blockEntityId > 0 && blockEntityId < 500)
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voxelId = uint(blockEntityId);
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}
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else if (currentRenderedItemId > 0 && currentRenderedItemId < 1200) {
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if (entityId != ENTITY_ITEM_FRAME && entityId != ENTITY_PLAYER) {
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uint oldID = imageLoad(imgVoxelMask, voxelPos).r;
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// offset by a random number that came into my head to make entities and items not interact with grass
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voxelId = uint(currentRenderedItemId)+1200u;
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if(oldID == 12u) voxelId += 1200u;
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}
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}
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else {
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switch (entityId) {
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case ENTITY_BLAZE:
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case ENTITY_END_CRYSTAL:
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// case ENTITY_FIREBALL_SMALL:
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case ENTITY_GLOW_SQUID:
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case ENTITY_MAGMA_CUBE:
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case ENTITY_SPECTRAL_ARROW:
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case ENTITY_TNT:
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voxelId = uint(entityId)+1200u;
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break;
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}
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}
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}
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#endif
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#if WATER_INTERACTION == 2
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if (
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((renderStage == MC_RENDER_STAGE_ENTITIES && (currentRenderedItemId > 0 || entityId > 0)) || renderStage == MC_RENDER_STAGE_BLOCK_ENTITIES)
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) {
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switch (entityId) {
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case ENTITY_BOAT:
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case ENTITY_SMALLSHIPS:
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voxelId = uint(entityId)+1200u;
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break;
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}
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}
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#endif
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if (voxelId > 0u){
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SetVoxelBlock(voxelPos, voxelId);
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}
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} |