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Tiling shader -- FIXME: cameraTranslation not working as it should

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minjaesong
2017-08-27 23:55:54 +09:00
parent 6ce45abfc4
commit 5d03bb96f3
1 changed files with 5 additions and 15 deletions
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20
assets/tiling.frag
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@@ -46,10 +46,13 @@ void main() {
// Make sure you don't use gl_FragCoord unknowingly! //
// FIXME: cameraTranslation not working as it should
// default gl_FragCoord takes half-integer (represeting centre of the pixel) -- could be useful for phys solver?
// This one, however, takes exact integer by rounding down. //
vec2 overscannedScreenDimension = tilesInAxes * tileSizeInPx;
vec2 flippedFragCoord = vec2(v_texCoords.x * screenDimension.x, (1 - v_texCoords.y) * screenDimension.y); // NO IVEC2!!
vec2 overscannedScreenDimension = tilesInAxes * tileSizeInPx; // one used by the tileFromMap
vec2 flippedFragCoord = vec2(gl_FragCoord.x, screenDimension.y - gl_FragCoord.y); // NO IVEC2!!; this flips Y
vec2 pxCoord = flippedFragCoord.xy + cameraTranslation;
@@ -71,17 +74,4 @@ void main() {
gl_FragColor = texture2D(tilesAtlas, finalUVCoordForTile);
//gl_FragColor = texture2D(tilemap, v_texCoords); // tilemap seems normal...
//gl_FragColor = tileFromMap; // <- oh, THIS WAS THE CULPRIT!
//gl_FragColor = fragInAtlas;
//gl_FragColor = vec4((gl_FragCoord.xy / vec2(512, 512)), 0, 1.0);
//vec4 atlascol = texture2D(tilesAtlas, v_texCoords);
//vec4 tilemapcol = texture2D(tilemap, v_texCoords);
//gl_FragColor = atlascol * tilemapcol;
//gl_FragColor = vec4(v_texCoords.x, v_texCoords.y, 0, 1.0);
}