mirror of
https://github.com/zeldaret/mm.git
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Derek Hensley
77 lines
3.0 KiB
C
77 lines
3.0 KiB
C
#include "global.h"
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Mtx* sSkyboxDrawMatrix;
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Mtx* Skybox_UpdateMatrix(SkyboxContext* skyboxCtx, f32 x, f32 y, f32 z) {
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Matrix_Translate(x, y, z, MTXMODE_NEW);
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Matrix_Scale(1.0f, 1.0f, 1.0f, MTXMODE_APPLY);
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Matrix_RotateXFApply(skyboxCtx->rot.x);
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Matrix_RotateYF(skyboxCtx->rot.y, MTXMODE_APPLY);
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Matrix_RotateZF(skyboxCtx->rot.z, MTXMODE_APPLY);
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return Matrix_ToMtx(sSkyboxDrawMatrix);
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}
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void Skybox_SetColors(SkyboxContext* skyboxCtx, u8 primR, u8 primG, u8 primB, u8 envR, u8 envG, u8 envB) {
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skyboxCtx->prim.r = primR;
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skyboxCtx->prim.g = primG;
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skyboxCtx->prim.b = primB;
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skyboxCtx->env.r = envR;
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skyboxCtx->env.g = envG;
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skyboxCtx->env.b = envB;
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}
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void Skybox_Draw(SkyboxContext* skyboxCtx, GraphicsContext* gfxCtx, s16 skyboxId, s16 blend, f32 x, f32 y, f32 z) {
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OPEN_DISPS(gfxCtx);
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Gfx_SetupDL40_Opa(gfxCtx);
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gSPSegment(POLY_OPA_DISP++, 0x0B, skyboxCtx->palette);
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gSPTexture(POLY_OPA_DISP++, 0x8000, 0x8000, 0, G_TX_RENDERTILE, G_ON);
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// Prepare matrix
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sSkyboxDrawMatrix = GRAPH_ALLOC(gfxCtx, sizeof(Mtx));
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Matrix_Translate(x, y, z, MTXMODE_NEW);
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Matrix_Scale(1.0f, 1.0f, 1.0f, MTXMODE_APPLY);
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Matrix_RotateXFApply(skyboxCtx->rot.x);
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Matrix_RotateYF(skyboxCtx->rot.y, MTXMODE_APPLY);
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Matrix_RotateZF(skyboxCtx->rot.z, MTXMODE_APPLY);
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Matrix_ToMtx(sSkyboxDrawMatrix);
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gSPMatrix(POLY_OPA_DISP++, sSkyboxDrawMatrix, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
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// Enable magic square RGB dithering and bilinear filtering
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gDPSetColorDither(POLY_OPA_DISP++, G_CD_MAGICSQ);
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gDPSetTextureFilter(POLY_OPA_DISP++, G_TF_BILERP);
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// All skyboxes use CI8 textures with an RGBA16 palette
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gDPLoadTLUT_pal256(POLY_OPA_DISP++, skyboxCtx->palette);
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gDPSetTextureLUT(POLY_OPA_DISP++, G_TT_RGBA16);
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// Enable texture filtering RDP pipeline stages for bilinear filtering
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gDPSetTextureConvert(POLY_OPA_DISP++, G_TC_FILT);
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// Set skybox color
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gDPSetCombineLERP(POLY_OPA_DISP++, TEXEL1, TEXEL0, PRIMITIVE_ALPHA, TEXEL0, TEXEL1, TEXEL0, PRIMITIVE, TEXEL0,
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PRIMITIVE, ENVIRONMENT, COMBINED, ENVIRONMENT, 0, 0, 0, COMBINED);
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gDPSetPrimColor(POLY_OPA_DISP++, 0, 0, skyboxCtx->prim.r, skyboxCtx->prim.g, skyboxCtx->prim.b, blend);
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gDPSetEnvColor(POLY_OPA_DISP++, skyboxCtx->env.r, skyboxCtx->env.g, skyboxCtx->env.b, 0);
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// Draw each face
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gSPDisplayList(POLY_OPA_DISP++, &skyboxCtx->dListBuf[0]); // -z face
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gSPDisplayList(POLY_OPA_DISP++, &skyboxCtx->dListBuf[2]); // +z face
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gSPDisplayList(POLY_OPA_DISP++, &skyboxCtx->dListBuf[4]); // -x face
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gSPDisplayList(POLY_OPA_DISP++, &skyboxCtx->dListBuf[6]); // +x face
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gSPDisplayList(POLY_OPA_DISP++, &skyboxCtx->dListBuf[8]); // +y face
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if (skyboxId == SKYBOX_CUTSCENE_MAP) {
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// Skip the bottom face unless in the cutscene map
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gSPDisplayList(POLY_OPA_DISP++, &skyboxCtx->dListBuf[10]); // -y face
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}
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gDPPipeSync(POLY_OPA_DISP++);
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CLOSE_DISPS(gfxCtx);
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}
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void Skybox_Update(SkyboxContext* skyboxCtx) {
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}
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