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Skybox demo

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bloeys
2022-10-14 07:55:48 +04:00
parent 6f54aecb5f
commit b5a2479c16
5 changed files with 153 additions and 72 deletions
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16
assets/textures.go
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@ -2,6 +2,7 @@ package assets
import (
"bytes"
"fmt"
"image"
"image/color"
"image/jpeg"
@ -259,7 +260,7 @@ func LoadCubemapTextures(rightTex, leftTex, topTex, botTex, frontTex, backTex st
imgDecoder = png.Decode
pixelDecoder = pixelsFromNrgbaPng
} else {
panic("unknown image extension: " + ext)
return Cubemap{}, fmt.Errorf("unknown image extension: %s. Expected one of: .jpg, .jpeg, .png", ext)
}
cmap := Cubemap{
@ -271,8 +272,12 @@ func LoadCubemapTextures(rightTex, leftTex, topTex, botTex, frontTex, backTex st
BackPath: backTex,
}
gl.GenTextures(1, &cmap.TexID)
gl.BindTexture(gl.TEXTURE_CUBE_MAP, cmap.TexID)
// The order here matters
texturePaths := []string{rightTex, leftTex, topTex, botTex, frontTex, backTex}
for i := 0; i < len(texturePaths); i++ {
for i := uint32(0); i < uint32(len(texturePaths)); i++ {
fPath := texturePaths[i]
@ -289,12 +294,7 @@ func LoadCubemapTextures(rightTex, leftTex, topTex, botTex, frontTex, backTex st
pixels, width, height := pixelDecoder(img)
//Prepare opengl stuff
gl.GenTextures(1, &cmap.TexID)
gl.BindTexture(gl.TEXTURE_CUBE_MAP, cmap.TexID)
// load and generate the texture
gl.TexImage2D(gl.TEXTURE_CUBE_MAP, 0, gl.RGBA8, int32(width), int32(height), 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&pixels[0]))
gl.TexImage2D(uint32(gl.TEXTURE_CUBE_MAP_POSITIVE_X)+i, 0, gl.RGBA8, int32(width), int32(height), 0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&pixels[0]))
}
// set the texture wrapping/filtering options (on the currently bound texture object)