Hi, I have the same problem reported by one user of my game (for Galaxy S2). Textures that are rotated are either completely invisible or rendered incorrectly.
I use opengl 1.0, without VBO and without mipmapping. As I do not have access to galaxy S2 I would be grateful if you post your solution once you find it. thanks marcin On Tue, Sep 6, 2011 at 1:03 AM, emanuele padula <[email protected]> wrote: > Thank you Christopher. I'll do some test regarding the mipmapping, but i'm > not sure that it will work. Thank you for you suggestion. > > > 2011/9/5 Christopher Van Kirk <[email protected]> > >> I'm seeing a similar problem on that device, but I haven't spent any time >> looking for an answer yet. I see that you're using VBOs...I've read >> somewhere that some devices have trouble with them but I don't know if it's >> true or which devices might be affected. I also know that in my case I'm >> also using VBOs, but I'm not rotating the texture, I'm stretching it without >> a mipmap, and it's a JPEG. >> >> Sorry couldn't be more help. >> >> >> On 9/5/2011 10:15 PM, pad wrote: >> >>> Hi, >>> I have a huge problem ONLY with SAMSUNG GALAXY S2 and i cannot figure >>> out if the problem is my code or of this device!! >>> >>> ON ALL OTHER PHONES IT WORKS GREAT!! >>> >>> I'm Using ONLY OpenGL 1.0. >>> >>> The problem is that with the code below my game cannot draw the object >>> that need rotation (the objects are not visualized on the screen). >>> Objects with no rotation (angle = 0.0) are drawn perfectly. >>> >>> ONLY on samsung galaxy s2 the rotated images are not visualized on the >>> screen. There is some bug in SG2 that i have to take in cosideration >>> or some specific initialization? >>> >>> Can you help me??? >>> >>> Thank you in advance >>> >>> public static void drawBitmap(final GL10 gl, final float x, final >>> float y, >>> final float rotate_x, final float rotate_y, final MyImage m, >>> final float angle) { >>> >>> // Draw using verts or VBO verts. >>> gl.glPushMatrix(); >>> // gl.glLoadIdentity(); >>> >>> final int indexPerTile = TextureManager.INDEX_PER_TILE; >>> final int indexRow = m.fx.row * TextureManager.INDEX_PER_TILE >>> * TextureManager.TILE_PER_ROW; >>> >>> if (angle == 0.0f) { >>> >>> gl.glTranslatef(x, y, 0f); >>> gl.glScalef(m.scaleWidth, m.scaleHeight, 1); >>> m.fx.grid.drawStrip(gl, true, indexRow, >>> indexPerTile);// the >>> code of this method is below >>> >>> if (m.alpha != 1 || m.red != 1 || m.blue != 1 || >>> m.green != 1) { >>> gl.glColor4f(1.0f, 1.0f, 1.0f, 1.0f); >>> } >>> >>> } else { >>> >>> final float xt = rotate_x; >>> final float yt = rotate_y; >>> gl.glTranslatef(xt, yt, 0f); >>> gl.glRotatef(-angle, 0f, 0f, 1.0f); >>> gl.glTranslatef(-xt + x, -yt + y, 0f); >>> gl.glScalef(m.scaleWidth, m.scaleHeight, 1); >>> >>> m.fx.grid.drawStrip(gl, true, indexRow, indexPerTile); // the >>> code of this method is below >>> >>> if (m.alpha != 1 || m.red != 1 || m.blue != 1 || m.green != >>> 1) { >>> gl.glColor4f(1.0f, 1.0f, 1.0f, 1.0f); >>> } >>> } >>> >>> gl.glPopMatrix(); >>> } >>> >>> >>> public void drawStrip(final GL10 gl, final boolean useTexture, >>> final int startIndex, >>> final int indexCount) { >>> int count = indexCount; >>> if (startIndex + indexCount>= this.mIndexCount) { >>> count = this.mIndexCount - startIndex; >>> } >>> >>> gl.glDrawElements(GL10.GL_**TRIANGLES, count, >>> GL10.GL_UNSIGNED_SHORT, >>> this.mIndexBuffer.position(**startIndex)); >>> >>> } >>> >>> >> > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
